TTC, cysts, endometriosis!?!

I have been ttc for 2 years with no luck. For 17 years I have always thought I had edometriosis but never diagnosed, doctors refused to do a laparoscopy for an official diagnosis. I was just put on birth control and pain meds. Now that I am ttc and can't be on birth control my cramps during my period are so severe I can't take it anymore. I did have a  recent ultrasound and found a cyst that needs to be removed I am scared but happy at the same time because I can potential get a diagnosis and answers on if I have endometriosis or not. I want to have kids more than anything but nervous that will never happen for me. Does anyone have an advice, stories or suggestions on any of these topics?